Polar Flow is still ‘down’ in the sense that it can’t communicate with other apps…well Strava. Manual export also does not work.
Also (thanks Barrie) I never knew about the Bipolar app that takes data straight off the Polar watches without the need for Polar Sync (well the V800 at any rate).
Not sure if WD40 will be sufficient enough to get the spanner out of the works.
Reiner (ty): Can export GPX
Below (ty): may work on MAC